How do I density slice an image?

Technical Note: 4
Reads: 9006
Creation Date: 28/09/1999
Modification Date: 12/02/2004

Use the Open command to open the image file that you wish to density slice.

Decide which layer you intend to use to set the Density Slicing criteria and use the Layers Manager palette to make it current. Then select any other layers to which you wish to apply the same density slicing criteria by highlighting them in the Layers Manager palette.

In the current layer, draw a region of interest in an object to define either the color and /or the intensity of the objects to be detected throughout that layer and all selected layers.

Select the "Image" menu at the top of the screen and choose "Density Slice" to open the Density Slicing dialogue box.

Select the appropriate Color Model from the pop-up menu.

Click on "Grab from ROI" to identify all objects in the layer that meet the selection criteria. View the result and choose a color for the density slice overlay from the "Tint color" options.

To overlay the image displayed in the preview window with a transparent tint color use the "Transparent" button under the preview window.

You may need to adjust the Hue, Saturation and Intensity or Red, Green and Blue slider bars to optimise the selection to include all of the desired objects.

When you are satisfied with the selection choose "Current Layer" or "Selected Layers" to apply Density Slicing to the current layer only or to the selected layers in the image file. Click on "Slice" to execute the Density Slicing.

You have the option to save density slice settings and load previously stored settings using the "Save" and "Load" options.

The Layers Manager palette will now include a density sliced layer for every image that you selected.